Add settings dialog for Sky Mode and Skip Prompt, update main HTML and script

- Created `settings.html` with a dialog for adjusting settings related to Sky Mode and Skip Prompt.
- Updated `main.html` to include context menus for folder operations.
- Enhanced `main.js` with functionality to handle settings changes, apply Sky Mode, and add copy-to-clipboard feature for diffs.

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.gitignore

@@ -1,2 +1,3 @@
 node_modules
-package-lock.json
+package-lock.json
+dist